Wednesday, December 11, 2013

A prized series composition

In "series" compositions, one side makes moves alone, alters the position in some fashion, and when its moves are completed, then the other side mates or stalemates, accordingly with the stipulation.

Today we will see a ser-s=198, that is a series inverse stalemate in 198 moves. The white plays 198 moves alone and in the last one the black plays and is forced to stalemate the wK. This composition was awarded with 1st prize in a ChessCafe.com tourney and is a world record in its category. (See the presentation with a Sherlock-Holmes-like story in page 5 of the document : http://www.chesscafe.com/text/puzzling54.pdf)
Four black Pawns have been promoted to bQ, bR, bR, bR. The wK has difficulty in moving around the chessboard with the assistance of the wB, but the wK is obstructive and the wB makes large rounds.
During the writing of the solution, we omit the moves which are easily deducted.

The composer, Arno Tüngler, is very succesful with very long compositions.

Exercises of the day

Every day the website www.shredderchess.com offers to the readers of the blogs three easy chess exercises. They are given in three levels of difficulty, (L1, L2, and L3), and you may give the solution by moving the pieces with the mouse pointer. Below the diagram is then shown if the answer is correct or not.

If you miss OTB play...

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